How do I apply force to an object that must move with the forehead?
I solved it. Found a blend showing what I needed.

http://bulletphysics.org/Bullet/phpB...69367c52979f40

If you're up for seeing it yourself in action, all I did was add 3 bricks below there's (of the top cube) that makes it move ex. left when you press A. I used Simple Motion. And was able to record it into Cycles. Looks good. Gravity is natural anyways and won't show up in the face springs.